Apple has recently approved a Bluetooth 4.0 heart rate monitor application called CardioMapper. The app, which is available to download for $1.99, provides "full real time and post exercise analysis," allowing users to track their burned calories using the iPhone's GPS.

Another tidbit from yesterday's iPhone 4S announcement is that the next generation iPhone comes with the new and improved Bluetooth 4.0 standard. You might not care much about Bluetooth right now, but it's bigger than you think if used properly.

As you might have noticed Apple has included a brand new version of the Bluetooth standard in its recently released MacBook Airs. Labeled Bluetooth 4.0, this new version of the short distance wireless protocol allows for some incredible new tricks, which Apple will, without a doubt, take advantage of in its upcoming iDevices. Furthermore, it might also signify the early death of NFC.